Thread: MB High Idle
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Old 06-04-20, 06:39 PM   #3
mark turner
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Join Date: Mar 2010
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Quote:
Originally Posted by BackintheFold View Post
Do you mean the warm up regulator (by the side of the block near the spark plugs, fuel) Correct, no difference when disconnecting the electrical connection.
or
the Digital Idle Stabiliser? (top of the engine near the back by the coil, air)

More likely the DIS. Unplug and see what happens. Already done this and no difference, I even blanked the hose.

It does sound like excess air.

Aloso check the throttle valve is closing properly, not spring gunked up... Yep, throttle valve is fully closed.
I'm going to put my fuel pressure gauge on and check the pressures next followed by pressurising the intake.
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